Anatomy

Question 1

How many bones are in the cranium?

Answer 1

8

Question 2

How many of the cranium bones are paired? Which ones?

Answer 2

2- Rt and Lt Parietal

Rt and Lt Temporal

Question 3

What are all 8 cranium bones?

Answer 3

Frontal, 2 parietal, 2 temporal, sphenoid, ethmoid, occipital

Question 4

What are the 4 bones that make up the skull cap?

Answer 4

Frontal
Parietal
Temporal
Occipital

Question 5

What is another name for the skullcap?

Answer 5

Cal aria

Question 6

Which bones make up the floor of the cranium?

Answer 6

Frontal
Ethmoid
Sphenoid
Parietal
Temporal
Occipital

Question 7

The slight depression above the eyebrows is known as what? Which bone is this a part of?

Answer 7

The supra orbital groove (SOG), Frontal

Question 8

The superior rim of each orbit is known as what? Which bone is this a part of?

Answer 8

The supra orbital margin (SOM), Frontal

Question 9

A small hole or opening within the supra orbital margin slightly medial to the midpoint is what? Which bone is this a part of?

Answer 9

Supra orbital notch/foramen, Frontal

Question 10

What is the large rounded prominence of the frontal bone?

Answer 10

Frontal tuberosity

Question 11

What is the superciliary ridge? Which bone is this a part of?

Answer 11

The interior arch of the top of the orbit, Frontal

Question 12

Which bones articulate with the frontal bone?

Answer 12

Rt and Lt Parietal
Ethmoid
Sphenoid

Question 13

The widest portion of the skull lies between what?

Answer 13

The parietal tubercles/eminences

Question 14

What bones articulate with the parietal bones?

Answer 14

Frontal
Occipital 
A temporal on each side
Sphenoid
Opposite parietal

Question 15

Which portion of the occipital bone articulates with the atlas?

Answer 15

The occipital condyles

Question 16

What are the 3 portions of the temporal bone?

Answer 16

1. Mastoid portion
2. Squamous portion
3. Petrous portion

Question 17

What is the thin upper portion of the temporal bone?

Answer 17

The squamous portion

Question 18

The mastoid portion of the temporal bone contains what process?

Answer 18

The mastoid process

Question 19

What is another nam of the petrous portion of the temporal bone?

Answer 19

The petrous ridges

Question 20

What are the foramens associated with the interior portion of the temporal bones?

Answer 20

The rt and lt jugular foramens

The rt and lt internal acoustic meatus

Question 21

Which cranial bones articulate with the temporal bone?

Answer 21

Parietal
Occipital
Sphenoid

Question 22

What is the anchor for all of the cranial bones?

Answer 22

The sphenoid

Question 23

What three foramen are a part of the sphenoid from anterior to posterior position?

Answer 23

Foramen rotundum
Foramen ovale
Foramen spinosum

Question 24

Which gland is surrounded by the sella turcica?

Answer 24

The pituitary gland

Question 25

What part of the spheniod is posterior to the sella turcica?

Answer 25

The dorsum sella

Question 26

Which portion of the sphenoid bone forms a base of support for the pons?

Answer 26

The clivus

Question 27

The feet of the sphenoid, or bat, are called what?

Answer 27

Lateral Pterygoid process and hamulus

Question 28

Looking at the ethmoid bone from the coronal view, what are the 3 parts from superior to inferior?

Answer 28

Crista galli Cribiform Plate Perpendicular Plate

Question 29

What are the large processes that extend laterally on the ethmoid bone?

Answer 29

Lateral Labyrinth (masses)

Question 30

What do the lateral masses contain?

Answer 30

Ethmoid air cells or sinuses

Question 31

What extends medially and downward from the lateral masses?

Answer 31

Superior and middle nasal concha or turbinates

Question 32

Name the 4 cranial sutures.

Answer 32

1. Coronal 2. Lambdoidal 3. Squamosal 4. Sagittal

Question 33

Name the 4 junction points on the cranium. (where each suture meets)

Answer 33

1. Asterion 2. Bregma 3. Lambda 4. Pterion